We hear a lot about bowling balls having unique pin action as part of their design.
An example is hammer’s new line of Carbon Fiber balls that make that loud crack sound when they hit the pins.
These Carbon Fiber balls also have the tendency to “keep the pins low” as they say and allow mixing.
My teammate has a Deadly Aim and when he hits flush, the crack is real loud and different sounding and he gets pins moving into each other.
By comparison my other teammate, who has a Crux Pearl, will blow the pins back and up when he hits dead flush and has that traditional full strike sound.
Can you explain why and how different balls can be designed to move the pins in different ways?
What prompted this question is an effect I have noticed for some time that recently really interested me and want to share with you:
I have an "AMF Angle Plus" vintage urethane bowling ball.
I bought it "new in the box" on Ebay.
It has a simple pancake weight block so I had it drilled with the PBA Plastic Ball layout for Full Roller which was developed by Ron Machniak of "Precision Bowling."
The drilling uses a 1 1/8" diameter 4" deep balance hole to create an amazing amount of track flare for me. About 4-5" on average.
After drilling the ball weighs 14lbs 14oz.
What I found right away when I started to use this ball is the higher scores I was getting consistently on average because the ball had the weird ability, even on bad pocket hits, to either strike, or leave only one pin.
It seemed to do this by just softly pushing the pins sideways into each other rather slowly, rather than blowing them up, or back.
The pins will just push sideways and topple softly into each other and allow better carry as a rule.
I rarely get splits with this ball.
I have never noticed this effect when using any other ball, even other urethane balls like my Judge which just blows the pins back real fast.
The video below is a serious of varied pocket hits that demonstrates the slow pushing and toppling this ball creates.
Any thoughts on why this is and any personal experiences on bowling balls with unique pin action that seems to differ from the norm?
AMF Angle Plus Unique Pin Action:https://www.youtube.com/watch?v=KWiNv6Lc3Ec&feature=youtu.be